Javascript replace() doesn't work in VS - unknown character

I'm trying to use the javascript replace function to replace curly quote with straight quotes:

var EditedContent = content.replace(/“/g, '"');

This works great in a little proof of concept html file I've whipped up, but when it's in a visual studio project, it replaces the curly quote with a symbol that suggests 开发者_开发问答'unknown character':

How can I resolve this issue so that I can use the application properly when debugging?

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Use unicode:

... = content.replace(/\u201C/g, '"');

You can find unicode equivalents of various quotes here.